108
GB
The heat detector will trigger an alarm:
• if the temperature falls within the range given in the table below:
(A2 class detector, response time according to EN 54-5, chapter 4.2)
Minimum static response temperature
54 °C
Maximum static response temperature
70 °C
Air temperature
Response time
Response time
rise speed
lower limits
upper limits
° C per minute
Minute (minimum)
Minute (maximum)
1
29:00
46:00
3
7:13
16:00
5
4:09
10:00
10
2:00
5:30
20
1:00
3:13
30
0:40
2:25
or
• depending on the temperature rise speed
(A2 class detector, response time according to EN 54-5, chapter 5.4.3)
Examples:
• if the temperature increases by 1 °C per minute then the heat detector should not trigger
an alarm before 29 minutes have passed and should then trigger an alarm between
29 minutes and 46 minutes.
• if the temperature increases by 30 °C per minute then the heat detector should not trigger
an alarm before 40 seconds have passed and should then trigger an alarm between
40 seconds and 2 minutes and 25 seconds.
Summary of Contents for 155-21X
Page 1: ...Upgraded for e Nova applications...
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